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bypass 的简介及应用

天天天蓝loveyou 03-02 19:00 阅读 3

1.编写cpp文件

#include "pycpp.h"
#include <iostream>

using namespace std;

PyCpp::PyCpp(){

}

void PyCpp::sayHello(int a){
    cout << "Hello Python, I am C++."<<a << endl;
}

2.编写头文件(声明变量)

class PyCpp{
public:
    PyCpp();
    void sayHello(int a);
};
// 不能定义编译器生成的特殊成员函数(必须首先在类中声明)

3.编写.i文件,用于链接

%module pycpp

%{
#include "pycpp.h"
%}

%include "pycpp.h"

4.在同级目录下放python.h(去conda的env里面找)
5.下载swig运行代码
swig -c++ -python 1/pycpp.i
生成_wrap.cxx
6.编写setup.py

from distutils.core import setup, Extension
pycpp_module = Extension('_pycpp',
                           sources=['pycpp.cpp', 'pycpp_wrap.cxx',],
                           )
setup (name = 'pycpp',
       version = '0.1',
       author      = "NZACH",
       description = """Simple swig C\+\+/Python example.""",
       ext_modules = [pycpp_module],
       py_modules = ["pycpp"],
       )

7.运行setup.py
python setup.py build_ext --inplace

8.使用

>>> import pycpp
>>> pycpp.PyCpp().sayHello(12)
Hello Python, I am C++.12
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